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upgrade to go 1.18, use generics

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This commit is contained in:
Shivaram Lingamneni 2022-03-30 00:44:51 -04:00
parent 446c654dea
commit a549827f17
15 changed files with 60 additions and 67 deletions
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2
go.mod
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@ -1,6 +1,6 @@
module github.com/ergochat/ergo
go 1.17
go 1.18
require (
code.cloudfoundry.org/bytefmt v0.0.0-20200131002437-cf55d5288a48

5
irc/channel.go
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@ -177,10 +177,7 @@ func (channel *Channel) ExportRegistration(includeFlags uint) (info RegisteredCh
info.Bans = channel.lists[modes.BanMask].Masks()
info.Invites = channel.lists[modes.InviteMask].Masks()
info.Excepts = channel.lists[modes.ExceptMask].Masks()
info.AccountToUMode = make(map[string]modes.Mode)
for account, mode := range channel.accountToUMode {
info.AccountToUMode[account] = mode
}
info.AccountToUMode = utils.CopyMap(channel.accountToUMode)
}
if includeFlags&IncludeSettings != 0 {

14
irc/channelmanager.go
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@ -26,17 +26,17 @@ type ChannelManager struct {
sync.RWMutex // tier 2
// chans is the main data structure, mapping casefolded name -> *Channel
chans map[string]*channelManagerEntry
chansSkeletons utils.StringSet // skeletons of *unregistered* chans
registeredChannels utils.StringSet // casefolds of registered chans
registeredSkeletons utils.StringSet // skeletons of registered chans
purgedChannels utils.StringSet // casefolds of purged chans
chansSkeletons utils.HashSet[string] // skeletons of *unregistered* chans
registeredChannels utils.HashSet[string] // casefolds of registered chans
registeredSkeletons utils.HashSet[string] // skeletons of registered chans
purgedChannels utils.HashSet[string] // casefolds of purged chans
server *Server
}
// NewChannelManager returns a new ChannelManager.
func (cm *ChannelManager) Initialize(server *Server) {
cm.chans = make(map[string]*channelManagerEntry)
cm.chansSkeletons = make(utils.StringSet)
cm.chansSkeletons = make(utils.HashSet[string])
cm.server = server
// purging should work even if registration is disabled
@ -66,8 +66,8 @@ func (cm *ChannelManager) loadRegisteredChannels(config *Config) {
cm.Lock()
defer cm.Unlock()
cm.registeredChannels = make(utils.StringSet, len(rawNames))
cm.registeredSkeletons = make(utils.StringSet, len(rawNames))
cm.registeredChannels = make(utils.HashSet[string], len(rawNames))
cm.registeredSkeletons = make(utils.HashSet[string], len(rawNames))
for _, name := range rawNames {
cfname, err := CasefoldChannel(name)
if err == nil {

4
irc/channelreg.go
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@ -145,8 +145,8 @@ func (reg *ChannelRegistry) AllChannels() (result []string) {
}
// PurgedChannels returns the set of all casefolded channel names that have been purged
func (reg *ChannelRegistry) PurgedChannels() (result utils.StringSet) {
result = make(utils.StringSet)
func (reg *ChannelRegistry) PurgedChannels() (result utils.HashSet[string]) {
result = make(utils.HashSet[string])
prefix := fmt.Sprintf(keyChannelPurged, "")
reg.server.store.View(func(tx *buntdb.Tx) error {

12
irc/client.go
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@ -994,8 +994,8 @@ func (client *Client) ModeString() (str string) {
}
// Friends refers to clients that share a channel with this client.
func (client *Client) Friends(capabs ...caps.Capability) (result map[*Session]empty) {
result = make(map[*Session]empty)
func (client *Client) Friends(capabs ...caps.Capability) (result utils.HashSet[*Session]) {
result = make(utils.HashSet[*Session])
// look at the client's own sessions
addFriendsToSet(result, client, capabs...)
@ -1010,19 +1010,19 @@ func (client *Client) Friends(capabs ...caps.Capability) (result map[*Session]em
}
// Friends refers to clients that share a channel or extended-monitor this client.
func (client *Client) FriendsMonitors(capabs ...caps.Capability) (result map[*Session]empty) {
func (client *Client) FriendsMonitors(capabs ...caps.Capability) (result utils.HashSet[*Session]) {
result = client.Friends(capabs...)
client.server.monitorManager.AddMonitors(result, client.nickCasefolded, capabs...)
return
}
// helper for Friends
func addFriendsToSet(set map[*Session]empty, client *Client, capabs ...caps.Capability) {
func addFriendsToSet(set utils.HashSet[*Session], client *Client, capabs ...caps.Capability) {
client.stateMutex.RLock()
defer client.stateMutex.RUnlock()
for _, session := range client.sessions {
if session.capabilities.HasAll(capabs...) {
set[session] = empty{}
set.Add(session)
}
}
}
@ -1575,7 +1575,7 @@ func (client *Client) addChannel(channel *Channel, simulated bool) (err error) {
} else if client.oper == nil && len(client.channels) >= config.Channels.MaxChannelsPerClient {
err = errTooManyChannels
} else {
client.channels[channel] = empty{} // success
client.channels.Add(channel) // success
}
client.stateMutex.Unlock()

2
irc/client_test.go
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@ -11,7 +11,7 @@ import (
func TestGenerateBatchID(t *testing.T) {
var session Session
s := make(utils.StringSet)
s := make(utils.HashSet[string])
count := 100000
for i := 0; i < count; i++ {

6
irc/config.go
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@ -704,8 +704,8 @@ type Config struct {
// OperClass defines an assembled operator class.
type OperClass struct {
Title string
WhoisLine string `yaml:"whois-line"`
Capabilities utils.StringSet // map to make lookups much easier
WhoisLine string `yaml:"whois-line"`
Capabilities utils.HashSet[string] // map to make lookups much easier
}
// OperatorClasses returns a map of assembled operator classes from the given config.
@ -743,7 +743,7 @@ func (conf *Config) OperatorClasses() (map[string]*OperClass, error) {
// create new operclass
var oc OperClass
oc.Capabilities = make(utils.StringSet)
oc.Capabilities = make(utils.HashSet[string])
// get inhereted info from other operclasses
if len(info.Extends) > 0 {

4
irc/handlers.go
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@ -3424,7 +3424,7 @@ func whoHandler(server *Server, client *Client, msg ircmsg.Message, rb *Response
// Construct set of channels the client is in.
userChannels := make(ChannelSet)
for _, channel := range client.Channels() {
userChannels[channel] = empty{}
userChannels.Add(channel)
}
// Another client is a friend if they share at least one channel, or they are the same client.
@ -3437,7 +3437,7 @@ func whoHandler(server *Server, client *Client, msg ircmsg.Message, rb *Response
if channel.flags.HasMode(modes.Auditorium) {
return false // TODO this should respect +v etc.
}
if _, present := userChannels[channel]; present {
if userChannels.Has(channel) {
return true
}
}

2
irc/history/history.go
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@ -203,7 +203,7 @@ func (list *Buffer) betweenHelper(start, end Selector, cutoff time.Time, pred Pr
// returns all correspondents, in reverse time order
func (list *Buffer) allCorrespondents() (results []TargetListing) {
seen := make(utils.StringSet)
seen := make(utils.HashSet[string])
list.RLock()
defer list.RUnlock()

4
irc/import.go
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@ -54,7 +54,7 @@ type databaseImport struct {
Channels map[string]channelImport
}
func serializeAmodes(raw map[string]string, validCfUsernames utils.StringSet) (result []byte, err error) {
func serializeAmodes(raw map[string]string, validCfUsernames utils.HashSet[string]) (result []byte, err error) {
processed := make(map[string]int, len(raw))
for accountName, mode := range raw {
if len(mode) != 1 {
@ -80,7 +80,7 @@ func doImportDBGeneric(config *Config, dbImport databaseImport, credsType Creden
tx.Set(keySchemaVersion, strconv.Itoa(importDBSchemaVersion), nil)
tx.Set(keyCloakSecret, utils.GenerateSecretKey(), nil)
cfUsernames := make(utils.StringSet)
cfUsernames := make(utils.HashSet[string])
skeletonToUsername := make(map[string]string)
warnSkeletons := false

17
irc/monitor.go
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@ -7,6 +7,7 @@ import (
"sync"
"github.com/ergochat/ergo/irc/caps"
"github.com/ergochat/ergo/irc/utils"
"github.com/ergochat/irc-go/ircmsg"
)
@ -17,21 +18,21 @@ type MonitorManager struct {
// client -> (casefolded nick it's watching -> uncasefolded nick)
watching map[*Session]map[string]string
// casefolded nick -> clients watching it
watchedby map[string]map[*Session]empty
watchedby map[string]utils.HashSet[*Session]
}
func (mm *MonitorManager) Initialize() {
mm.watching = make(map[*Session]map[string]string)
mm.watchedby = make(map[string]map[*Session]empty)
mm.watchedby = make(map[string]utils.HashSet[*Session])
}
// AddMonitors adds clients using extended-monitor monitoring `client`'s nick to the passed user set.
func (manager *MonitorManager) AddMonitors(users map[*Session]empty, cfnick string, capabs ...caps.Capability) {
func (manager *MonitorManager) AddMonitors(users utils.HashSet[*Session], cfnick string, capabs ...caps.Capability) {
manager.RLock()
defer manager.RUnlock()
for session := range manager.watchedby[cfnick] {
if session.capabilities.Has(caps.ExtendedMonitor) && session.capabilities.HasAll(capabs...) {
users[session] = empty{}
users.Add(session)
}
}
}
@ -70,7 +71,7 @@ func (manager *MonitorManager) Add(session *Session, nick string, limit int) err
manager.watching[session] = make(map[string]string)
}
if manager.watchedby[cfnick] == nil {
manager.watchedby[cfnick] = make(map[*Session]empty)
manager.watchedby[cfnick] = make(utils.HashSet[*Session])
}
if len(manager.watching[session]) >= limit {
@ -78,7 +79,7 @@ func (manager *MonitorManager) Add(session *Session, nick string, limit int) err
}
manager.watching[session][cfnick] = nick
manager.watchedby[cfnick][session] = empty{}
manager.watchedby[cfnick].Add(session)
return nil
}
@ -92,7 +93,7 @@ func (manager *MonitorManager) Remove(session *Session, nick string) (err error)
manager.Lock()
defer manager.Unlock()
delete(manager.watching[session], cfnick)
delete(manager.watchedby[cfnick], session)
manager.watchedby[cfnick].Remove(session)
return nil
}
@ -102,7 +103,7 @@ func (manager *MonitorManager) RemoveAll(session *Session) {
defer manager.Unlock()
for cfnick := range manager.watching[session] {
delete(manager.watchedby[cfnick], session)
manager.watchedby[cfnick].Remove(session)
}
delete(manager.watching, session)
}

4
irc/nickname.go
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@ -24,8 +24,8 @@ var (
"MemoServ", "BotServ", "OperServ",
}
restrictedCasefoldedNicks = make(utils.StringSet)
restrictedSkeletons = make(utils.StringSet)
restrictedCasefoldedNicks = make(utils.HashSet[string])
restrictedSkeletons = make(utils.HashSet[string])
)
func performNickChange(server *Server, client *Client, target *Client, session *Session, nickname string, rb *ResponseBuffer) error {

23
irc/types.go
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@ -9,28 +9,11 @@ import (
"time"
"github.com/ergochat/ergo/irc/modes"
"github.com/ergochat/ergo/irc/utils"
)
type empty struct{}
// ClientSet is a set of clients.
type ClientSet map[*Client]empty
// Add adds the given client to this set.
func (clients ClientSet) Add(client *Client) {
clients[client] = empty{}
}
// Remove removes the given client from this set.
func (clients ClientSet) Remove(client *Client) {
delete(clients, client)
}
// Has returns true if the given client is in this set.
func (clients ClientSet) Has(client *Client) bool {
_, ok := clients[client]
return ok
}
type ClientSet = utils.HashSet[*Client]
type memberData struct {
modes *modes.ModeSet
@ -60,4 +43,4 @@ func (members MemberSet) Has(member *Client) bool {
}
// ChannelSet is a set of channels.
type ChannelSet map[*Channel]empty
type ChannelSet = utils.HashSet[*Channel]

22
irc/utils/types.go
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@ -5,13 +5,25 @@ package utils
type empty struct{}
type StringSet map[string]empty
type HashSet[T comparable] map[T]empty
func (s StringSet) Has(str string) bool {
_, ok := s[str]
func (s HashSet[T]) Has(elem T) bool {
_, ok := s[elem]
return ok
}
func (s StringSet) Add(str string) {
s[str] = empty{}
func (s HashSet[T]) Add(elem T) {
s[elem] = empty{}
}
func (s HashSet[T]) Remove(elem T) {
delete(s, elem)
}
func CopyMap[K comparable, V any](input map[K]V) (result map[K]V) {
result = make(map[K]V, len(input))
for key, value := range input {
result[key] = value
}
return
}

6
irc/znc.go
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@ -74,7 +74,7 @@ func timeToZncWireTime(t time.Time) (result string) {
type zncPlaybackTimes struct {
start time.Time
end time.Time
targets utils.StringSet // nil for "*" (everything), otherwise the channel names
targets utils.HashSet[string] // nil for "*" (everything), otherwise the channel names
setAt time.Time
}
@ -134,7 +134,7 @@ func zncPlaybackPlayHandler(client *Client, command string, params []string, rb
end = zncWireTimeToTime(params[3])
}
var targets utils.StringSet
var targets utils.HashSet[string]
var nickTargets []string
// three cases:
@ -157,7 +157,7 @@ func zncPlaybackPlayHandler(client *Client, command string, params []string, rb
if params[1] == "*" {
playPrivmsgs = true // XXX nil `targets` means "every channel"
} else {
targets = make(utils.StringSet)
targets = make(utils.HashSet[string])
for _, targetName := range strings.Split(targetString, ",") {
if strings.HasPrefix(targetName, "#") {
if cfTarget, err := CasefoldChannel(targetName); err == nil {